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光年之外
What is the origin of the idiom "light years away" and when to use it?
The idiom "light years away" is an idiomatic expression that refers to a significant or vast distance, often used metaphorically to describe something that is far beyond reach or extremely distant in terms of progress, understanding, or comparison. It emphasizes a considerable gap or difference, typically in a non-literal sense. It is often used in discussions about technology, progress, knowledge, or cultural understanding.
当两件事彼此截然不同时
What is the origin of the idiom "light years away" and when to use it?
The idiom "light years away" originates from the field of astronomy and astrophysics, where a "light-year" is used as a unit of measurement for astronomical distances. It represents the distance that light travels in one year, approximately 5.88 trillion miles. However, in everyday language, the idiom has evolved figuratively to convey a significant difference or vast distance between two things, concepts, or points of comparison, unrelated to actual astronomical distances. It is now commonly used in conversations, discussions, or writing when people want to highlight the vastness of the contrast between two elements.
